Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 206 [Rate centres in NPA 206] [Dial plan for NPA 206]

NXX: 231

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
206-231 A Des Moines WA DESMWA01DS0  9638 QWEST CORPORATION 674      
206-231 0 Des Moines WA   483E ONVOY, LLC - WA 674   2017-10-08   
206-231 1 Des Moines WA   5562 METROPCS, INC. 674   2017-11-10   
206-231 2 Des Moines WA   9638 QWEST CORPORATION 674   2017-07-13   
206-231 3 Des Moines WA   9638 QWEST CORPORATION 674   2017-07-13   
206-231 4 Des Moines WA   9638 QWEST CORPORATION 674   2017-07-13   
206-231 5 Des Moines WA   073H TELNYX LLC 674   2018-08-28   
206-231 6 Des Moines WA   159F PEERLESS NETWORK OF WASHINGTON, LLC - WA 674   2018-11-09   
206-231 7 Des Moines WA   5562 METROPCS, INC. 674   2018-08-06   
206-231 8 Des Moines WA   5562 METROPCS, INC. 674   2018-08-06   
206-231 9 Des Moines WA   6010 NEW CINGULAR WIRELESS PCS, LLC 674   2017-09-03   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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